Geology Engineering Mechanics Model Test Paper
Earth Science Sample Questions
Q.1. The power output of a 10 : 1 scale model of hydro
turbine is measured to be 20 W. The power output expected
from the prototype is
(a) 200 kW
(b) 150 kW
(c) 100 kW
(d) 63 kW
ANSWER: (d)
Q.2. Four cars, with a mass of 1500 kg. each, are
loaded on a 6 m wide, 12 m long small car ferry.
It will sink in the water for
(a) 15.2cm.
(b) 11.5cm.
(c) 10.2cm.
(d) 8.3 cm.
ANSWER: (d)
Q.3. Bluff body surface
(a) Is smooth so that friction can be neglected
(b) Coincides with streamlines
(c) Does not coincide with streamlines
(d) Perpendicular to streamlines
ANSWER: (c)
Q.4. Separation of flow occurs when pressure gradient
(a) Tends to approach zero
(b) Becomes negative
(c) Changes abruptly
(d) Reduces to a value when vapors formation starts
ANSWER: (c)
Q.5. Pressure coefficient is the ratio of pressure force to
(a) Inertia force
(b) Gravity force
(c) Viscous force
(d) Surface tension
ANSWER: (a)
Q.6. The rate of change of linear momentum is equals to
(a) Active force
(b) Reactive force
(c) Torque
(d) Work done
ANSWER: (a)
Q.7. Energy loss in flow through nozzle as compared
to venturimeter is
(a) Same
(b) More
(c) Less
(d) Unpredictable
ANSWER: (b)
Q.8. The rate of change of moment of momentum
represents the
(a) Force exterted by fluid
(b) Torque applied by the fluid
(c) Work done by the fluid
(a) Power developed by the fluid
ANSWER: (b)
Q.9. Two pipe systems can be said to be equivalent,
when the quantities same are
(a) Friction loss and flow
(b) Length and diameter
(c) Flow and length
(d) Friction factor and diameter
ANSWER: (a)
Q.10. The function of surge tank is to
(a) Relieve from pipe line of excessive pressure
produced by water hammer
(b) Smoothen flow
(c) Act as reservoir for emergency conditions
(d) Avoid reverse flow
ANSWER: (a)
Q.11. Hot wire anemometer is used to measure
(a) Pressure in gases
(b) Liquid discharge
(c) Pressure in liquids
(d) Gas velocities
ANSWER: (d)
Q.12. Gradually varied flow is
(a) Steady uniform
(b) Non-steady non-uniform
(c) Non-steady uniform
(d) Non-steady rifer
ANSWER: (d)
13. The force of buoyancy is dependent on
(a) Mass of liquid displaced
(b) Viscosity of fluid
(c) Surface tension of fluid
(d) Depth of immersion
ANSWER: (a)
Q.14. An object having 20 kg. mass weighs 19.60 kg.
on a spring type balance. The value of ‘g’ in
for the place is (a) 10.00
(b) 9.80
(c) 9.90
(d) 10.20
ANSWER: (b)
Q.15. Model analysis of aeroplanes and projectiles
moving at supersonic speed is base on
(a) Reynolds number
(b) Weber number
(c) Froude number
(d) Mach number
ANSWER: (d)
16. Centre of pressure on an inclined pane is
(a) At the cetroid
(b) Above the cetroid
(c) Below the cetroid
(d) At metacentric
ANSWER: (c)
Q.17. Match number greater than unity implies that
the flow is
(a) Sonic
(b) Subsonic
(c) Supersonic
(d) Hypersonic
ANSWER: (c)
Q.18. Component of the force of fluid on the body
(which is generally inclined to the direction of?
motion of the body) parallel to the direction of
motion is called
(a) Drag
(b) Lift
(c) Wake
(d) Thrust
ANSWER: (a)
Q.19. Weber number is the ratio of inertial force to
(a) Gravitational force
(b) Surface tension
(c) Pressure force
(d) Viscosity
ANSWER: (b)
Q.20. Critical velocity is
(a) Maximum attainable velocity
(b) Terminal velocity
(c) Velocity when hydraulic jump occurs
(d) Velocity above which flows ceases to be
streamlined
ANSWER: (b)
Q.21. A one dimensional flow is one which is
(a) Is uniform
(b) Is steady uniform
(c) Takes place in straight lines
(d) Involves zero transverse components of flow
ANSWER: (b)
Q.22. With increase in pressure the bulk modules of
elasticity
(a) Increases
(b) Decreases
(c) Remains constant
(d) Increases first upto certain limit and then decreases
ANSWER: (a)
Q.23. The stress-strain relation of the Newtonian fluid is
(a) Linear
(b) Parabolic
(c) Hyperbolic
(d) Inverse type
ANSWER: (a)
Q.24. Equation of continuity results from the principle
of conservation of
(a) Energy
(b) Flow
(c) Mass
(d) Momentum
ANSWER: (c)
Q.25. A barometer is used to measure
(a) Very low pressures
(b) Very high pressures
(c) Pressure of fluid in a pipe line
(d) Atmospheric pressure
ANSWER: (d)
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